Installation instructions V50-...-385
OBO Bettermann GmbH & Co. KG 8
EN
Product description
Lightning current and surge protection device for
equipotential bonding of power supply systems
according to VDE 0100-443 (IEC 60364-4-44)
and for lightning protection equipotential bonding
according to VDE 0185-305 (IEC 62305). For
mounting on hat rails and use in distributor hous-
ings. Arresters (Figure
) can be connected
individually and are encoded on the rear side, in
order to avoid incorrect connection. They pos-
sess a thermodynamic cut-off unit and have an
arresting capacity of up to 50 kA (8/20) and
12.5 kA (10/350) per pole.
If there is an error, the visual display switches
from grey to red (Figure ).
With snap-on hat rail bracket (Figure
).
The spark gap C50-0-255 is intended as an ar-
rester between the neutral conductor N and the
protective conductor (PE conductor).
Only V50-..+FS..: With module for remote sig-
nalling through potential-free changeover contact
(Figure ).
Target group
The device may only be mounted and connected
by an electrical technician.
General safety information
• Before working on power cables, ensure that
they are de-energised and secure them against
unintentional switch-on!
• Do not carry out mounting work during a storm!
• Comply with national laws and standards, e.g.
VDE 0100-534 (IEC 60364-5-53)!
Mounting and installation
The device can be installed in any position (e.g.
vertical or horizontal).
Figure : VDE 0100-534 (IEC 60364-5-53)
specifies that,
– in the case of single-branch wiring,
the total
connection length a + b
– or, in the case of V wiring, 2 the connection
length c
should never exceed 0.5 m.
For V wiring, use the connection terminal, item
no. 5012 010.
Caution! Risk of overloading!
The connection terminal 5012 010 is
approved for a maximum current load ≤
50 A.
Use a suitable back-up fuse!
• Clamp the protection device onto the hat rail,
EN Surge Protective Device
Item no. Type Product Protection
path ITotal 8/20 ITotal 10/350 IPE
Circuit
diagram
Figure
5093 510 V50-0-385 Single arrester* – – – – –
5093 572 V50-1-385 Single pole L – PE/N – – ≤ 700 µA 1
5093 574 V50-3-385 Three-pole L – PE/N 120 kA 37,5 kA ≤ 100 µA 3
5093 584 V50-1+NPE-385 Single-pole with NPE L – N,
N – PE 80 kA 25 kA ≤ 5 µA
5093 586 V50-3+NPE-385 Three-pole with NPE L – N,
N – PE 80 kA 50 kA ≤ 5 µA 7
5093 578 V50-1+FS-385 Single-pole with FS L – PE/N – – ≤ 700 µA
5093 580 V50-3+FS-385 Three-pole with FS L – PE/N 120 kA 37,5 kA ≤ 100 µA
5093 590 V50-1+NPE+FS-385 Single-pole with NPE/
FS L – N,
N – PE 80 kA 25 kA ≤ 5 µA
5093 592 V50-3+NPE+FS-385 Three-pole with NPE/
FS L – N,
N – PE 80 kA 50 kA ≤ 5 µA 7
5095 609 C50-0-255 Single arrester* – – – –
*Figure
